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storage_test.go
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/*
* Atree - Scalable Arrays and Ordered Maps
*
* Copyright Flow Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package atree_test
import (
"encoding/binary"
"errors"
"math/rand"
"runtime"
"strings"
"testing"
"github.com/fxamacker/cbor/v2"
"github.com/stretchr/testify/require"
"github.com/onflow/atree"
"github.com/onflow/atree/test_utils"
)
func TestStorageIndexNext(t *testing.T) {
index := atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1}
want := atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 2}
require.Equal(t, want, index.Next())
}
func TestNewSlabID(t *testing.T) {
t.Run("temp address", func(t *testing.T) {
require.True(t, atree.NewSlabID(atree.Address{}, atree.SlabIndex{1}).HasTempAddress())
})
t.Run("perm address", func(t *testing.T) {
require.False(t, atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1}).HasTempAddress())
})
}
func TestNewSlabIDFromRawBytes(t *testing.T) {
t.Run("data length < slab id size", func(t *testing.T) {
var fatalError *atree.FatalError
var slabIDError *atree.SlabIDError
id, err := atree.NewSlabIDFromRawBytes(nil)
require.Equal(t, atree.SlabIDUndefined, id)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &slabIDError)
require.ErrorAs(t, fatalError, &slabIDError)
id, err = atree.NewSlabIDFromRawBytes([]byte{0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 2})
require.Equal(t, atree.SlabIDUndefined, id)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &slabIDError)
require.ErrorAs(t, fatalError, &slabIDError)
})
t.Run("data length == slab id size", func(t *testing.T) {
id, err := atree.NewSlabIDFromRawBytes([]byte{0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2})
want := atree.NewSlabID(
atree.Address{0, 0, 0, 0, 0, 0, 0, 1},
atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 2},
)
require.Equal(t, want, id)
require.NoError(t, err)
})
t.Run("data length > slab id size", func(t *testing.T) {
id, err := atree.NewSlabIDFromRawBytes([]byte{0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 1, 2, 3, 4, 5, 6, 7, 8})
want := atree.NewSlabID(
atree.Address{0, 0, 0, 0, 0, 0, 0, 1},
atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 2},
)
require.Equal(t, want, id)
require.NoError(t, err)
})
}
func TestSlabIDToRawBytes(t *testing.T) {
t.Run("buffer nil", func(t *testing.T) {
var fatalError *atree.FatalError
var slabIDError *atree.SlabIDError
size, err := atree.SlabIDUndefined.ToRawBytes(nil)
require.Equal(t, 0, size)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &slabIDError)
require.ErrorAs(t, fatalError, &slabIDError)
})
t.Run("buffer too short", func(t *testing.T) {
var fatalError *atree.FatalError
var slabIDError *atree.SlabIDError
b := make([]byte, 8)
size, err := atree.SlabIDUndefined.ToRawBytes(b)
require.Equal(t, 0, size)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &slabIDError)
require.ErrorAs(t, fatalError, &slabIDError)
})
t.Run("undefined", func(t *testing.T) {
b := make([]byte, atree.SlabIDLength)
size, err := atree.SlabIDUndefined.ToRawBytes(b)
require.NoError(t, err)
want := []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
require.Equal(t, want, b)
require.Equal(t, atree.SlabIDLength, size)
})
t.Run("temp address", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{0, 0, 0, 0, 0, 0, 0, 0}, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1})
b := make([]byte, atree.SlabIDLength)
size, err := id.ToRawBytes(b)
require.NoError(t, err)
want := []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}
require.Equal(t, want, b)
require.Equal(t, atree.SlabIDLength, size)
})
t.Run("temp index", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{0, 0, 0, 0, 0, 0, 0, 1}, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 0})
b := make([]byte, atree.SlabIDLength)
size, err := id.ToRawBytes(b)
require.NoError(t, err)
want := []byte{0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0}
require.Equal(t, want, b)
require.Equal(t, atree.SlabIDLength, size)
})
t.Run("perm", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{0, 0, 0, 0, 0, 0, 0, 1}, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 2})
b := make([]byte, atree.SlabIDLength)
size, err := id.ToRawBytes(b)
require.NoError(t, err)
want := []byte{0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2}
require.Equal(t, want, b)
require.Equal(t, atree.SlabIDLength, size)
})
}
func TestSlabIDAddressAsUint64(t *testing.T) {
t.Run("temp", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{}, atree.SlabIndex{1})
require.Equal(t, uint64(0), id.AddressAsUint64())
})
t.Run("perm", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{0, 0, 0, 0, 0, 0, 0, 1}, atree.SlabIndex{1})
require.Equal(t, uint64(1), id.AddressAsUint64())
})
}
func TestSlabIDAddress(t *testing.T) {
t.Run("temp", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{}, atree.SlabIndex{1})
require.Equal(t, atree.Address{}, id.Address())
})
t.Run("perm", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{0, 0, 0, 0, 0, 0, 0, 1}, atree.SlabIndex{1})
require.Equal(t, atree.Address{0, 0, 0, 0, 0, 0, 0, 1}, id.Address())
})
}
func TestSlabIDIndexAsUint64(t *testing.T) {
t.Run("temp", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{}, atree.SlabIndex{})
require.Equal(t, uint64(0), id.IndexAsUint64())
})
t.Run("perm", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{}, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1})
require.Equal(t, uint64(1), id.IndexAsUint64())
})
}
func TestSlabIDValid(t *testing.T) {
t.Run("undefined", func(t *testing.T) {
id := atree.SlabIDUndefined
err := id.Valid()
var fatalError *atree.FatalError
var slabIDError *atree.SlabIDError
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &slabIDError)
require.ErrorAs(t, fatalError, &slabIDError)
})
t.Run("temp index", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{1}, atree.SlabIndexUndefined)
err := id.Valid()
var fatalError *atree.FatalError
var slabIDError *atree.SlabIDError
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &slabIDError)
require.ErrorAs(t, fatalError, &slabIDError)
})
t.Run("temp address", func(t *testing.T) {
id := atree.NewSlabID(atree.AddressUndefined, atree.SlabIndex{1})
require.NoError(t, id.Valid())
})
t.Run("valid", func(t *testing.T) {
id := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{2})
require.NoError(t, id.Valid())
})
}
func TestSlabIDCompare(t *testing.T) {
t.Run("same", func(t *testing.T) {
id1 := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
id2 := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
require.Equal(t, 0, id1.Compare(id2))
require.Equal(t, 0, id2.Compare(id1))
})
t.Run("different address", func(t *testing.T) {
id1 := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
id2 := atree.NewSlabID(atree.Address{2}, atree.SlabIndex{1})
require.Equal(t, -1, id1.Compare(id2))
require.Equal(t, 1, id2.Compare(id1))
})
t.Run("different index", func(t *testing.T) {
id1 := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
id2 := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{2})
require.Equal(t, -1, id1.Compare(id2))
require.Equal(t, 1, id2.Compare(id1))
})
t.Run("different address and index", func(t *testing.T) {
id1 := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
id2 := atree.NewSlabID(atree.Address{2}, atree.SlabIndex{2})
require.Equal(t, -1, id1.Compare(id2))
require.Equal(t, 1, id2.Compare(id1))
})
}
func TestLedgerBaseStorageStore(t *testing.T) {
ledger := newTestLedger()
baseStorage := atree.NewLedgerBaseStorage(ledger)
bytesStored := 0
values := map[atree.SlabID][]byte{
atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1}): {1, 2, 3},
atree.NewSlabID(atree.Address{1}, atree.SlabIndex{2}): {4, 5, 6},
}
// Store values
for id, value := range values {
err := baseStorage.Store(id, value)
bytesStored += len(value)
require.NoError(t, err)
}
// Overwrite stored values
for id := range values {
values[id] = append(values[id], []byte{1, 2, 3}...)
bytesStored += len(values[id])
err := baseStorage.Store(id, values[id])
require.NoError(t, err)
}
require.Equal(t, bytesStored, baseStorage.BytesStored())
require.Equal(t, 0, baseStorage.BytesRetrieved())
iterator := ledger.Iterator()
count := 0
for {
owner, key, value := iterator()
if owner == nil {
break
}
id := NewSlabIDFromRawAddressAndIndex(owner, key[1:])
require.True(t, atree.LedgerKeyIsSlabKey(string(key)))
require.Equal(t, values[id], value)
count++
}
require.Equal(t, len(values), count)
}
func TestLedgerBaseStorageRetrieve(t *testing.T) {
ledger := newTestLedger()
baseStorage := atree.NewLedgerBaseStorage(ledger)
id := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
value := []byte{1, 2, 3}
bytesStored := 0
bytesRetrieved := 0
// Retrieve value from empty storage
b, found, err := baseStorage.Retrieve(id)
require.NoError(t, err)
require.False(t, found)
require.Equal(t, 0, len(b))
bytesStored += len(value)
err = baseStorage.Store(id, value)
require.NoError(t, err)
// Retrieve stored value
b, found, err = baseStorage.Retrieve(id)
bytesRetrieved += len(b)
require.NoError(t, err)
require.True(t, found)
require.Equal(t, value, b)
// Retrieve non-existent value
id = atree.NewSlabID(atree.Address{1}, atree.SlabIndex{2})
b, found, err = baseStorage.Retrieve(id)
require.NoError(t, err)
require.False(t, found)
require.Nil(t, b)
require.Equal(t, bytesStored, baseStorage.BytesStored())
require.Equal(t, bytesRetrieved, baseStorage.BytesRetrieved())
}
func TestLedgerBaseStorageRemove(t *testing.T) {
ledger := newTestLedger()
baseStorage := atree.NewLedgerBaseStorage(ledger)
id := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
value := []byte{1, 2, 3}
// Remove value from empty storage
err := baseStorage.Remove(id)
require.NoError(t, err)
err = baseStorage.Store(id, value)
require.NoError(t, err)
// Remove stored value
err = baseStorage.Remove(id)
require.NoError(t, err)
// Remove removed value
err = baseStorage.Remove(id)
require.NoError(t, err)
// Remove non-existent value
err = baseStorage.Remove(atree.NewSlabID(id.Address(), id.Index().Next()))
require.NoError(t, err)
// Retrieve removed value
slab, found, err := baseStorage.Retrieve(id)
require.NoError(t, err)
require.False(t, found)
require.Nil(t, slab)
iterator := ledger.Iterator()
count := 0
for {
owner, key, value := iterator()
if owner == nil {
break
}
require.True(t, atree.LedgerKeyIsSlabKey(string(key)))
require.Nil(t, value)
count++
}
require.Equal(t, 2, count)
}
func TestLedgerBaseStorageGenerateSlabID(t *testing.T) {
ledger := newTestLedger()
baseStorage := atree.NewLedgerBaseStorage(ledger)
address1 := atree.Address{1}
address2 := atree.Address{2}
id, err := baseStorage.GenerateSlabID(address1)
require.NoError(t, err)
require.Equal(t, address1, id.Address())
require.Equal(t, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1}, id.Index())
id, err = baseStorage.GenerateSlabID(address1)
require.NoError(t, err)
require.Equal(t, address1, id.Address())
require.Equal(t, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 2}, id.Index())
id, err = baseStorage.GenerateSlabID(address2)
require.NoError(t, err)
require.Equal(t, address2, id.Address())
require.Equal(t, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1}, id.Index())
}
func TestBasicSlabStorageStore(t *testing.T) {
storage := atree.NewBasicSlabStorage(nil, nil, nil, nil)
r := newRand(t)
address := atree.Address{1}
slabs := map[atree.SlabID]atree.Slab{
atree.NewSlabID(address, atree.SlabIndex{1}): generateRandomSlab(atree.NewSlabID(address, atree.SlabIndex{1}), r),
atree.NewSlabID(address, atree.SlabIndex{2}): generateRandomSlab(atree.NewSlabID(address, atree.SlabIndex{2}), r),
}
// Store values
for id, slab := range slabs {
err := storage.Store(id, slab)
require.NoError(t, err)
}
// Overwrite stored values
for id := range slabs {
slab := generateRandomSlab(id, r)
slabs[id] = slab
err := storage.Store(id, slab)
require.NoError(t, err)
}
require.Equal(t, len(slabs), storage.Count())
// Retrieve slabs
for id, want := range slabs {
slab, found, err := storage.Retrieve(id)
require.NoError(t, err)
require.True(t, found)
require.Equal(t, want, slab)
}
}
func TestBasicSlabStorageRetrieve(t *testing.T) {
storage := atree.NewBasicSlabStorage(nil, nil, nil, nil)
r := newRand(t)
id := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
slab := generateRandomSlab(id, r)
// Retrieve value from empty storage
retrievedSlab, found, err := storage.Retrieve(id)
require.NoError(t, err)
require.False(t, found)
require.Nil(t, retrievedSlab)
err = storage.Store(id, slab)
require.NoError(t, err)
// Retrieve stored value
retrievedSlab, found, err = storage.Retrieve(id)
require.NoError(t, err)
require.True(t, found)
require.Equal(t, slab, retrievedSlab)
// Retrieve non-existent value
id = atree.NewSlabID(atree.Address{1}, atree.SlabIndex{2})
retrievedSlab, found, err = storage.Retrieve(id)
require.NoError(t, err)
require.False(t, found)
require.Nil(t, retrievedSlab)
}
func TestBasicSlabStorageRemove(t *testing.T) {
storage := atree.NewBasicSlabStorage(nil, nil, nil, nil)
r := newRand(t)
id := atree.NewSlabID(atree.Address{1}, atree.SlabIndex{1})
slab := generateRandomSlab(id, r)
// Remove value from empty storage
err := storage.Remove(id)
require.NoError(t, err)
err = storage.Store(id, slab)
require.NoError(t, err)
// Remove stored value
err = storage.Remove(id)
require.NoError(t, err)
// Remove removed value
err = storage.Remove(id)
require.NoError(t, err)
// Remove non-existent value
err = storage.Remove(atree.NewSlabID(id.Address(), id.Index().Next()))
require.NoError(t, err)
// Retrieve removed value
slab, found, err := storage.Retrieve(id)
require.NoError(t, err)
require.False(t, found)
require.Nil(t, slab)
require.Equal(t, 0, storage.Count())
}
func TestBasicSlabStorageGenerateSlabID(t *testing.T) {
storage := atree.NewBasicSlabStorage(nil, nil, nil, nil)
address1 := atree.Address{1}
address2 := atree.Address{2}
id, err := storage.GenerateSlabID(address1)
require.NoError(t, err)
require.Equal(t, address1, id.Address())
require.Equal(t, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1}, id.Index())
id, err = storage.GenerateSlabID(address1)
require.NoError(t, err)
require.Equal(t, address1, id.Address())
require.Equal(t, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 2}, id.Index())
id, err = storage.GenerateSlabID(address2)
require.NoError(t, err)
require.Equal(t, address2, id.Address())
require.Equal(t, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1}, id.Index())
}
func TestBasicSlabStorageSlabIDs(t *testing.T) {
r := newRand(t)
address := atree.Address{1}
index := atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 0}
wantIDs := map[atree.SlabID]bool{
atree.NewSlabID(address, index.Next()): true,
atree.NewSlabID(address, index.Next()): true,
atree.NewSlabID(address, index.Next()): true,
}
storage := atree.NewBasicSlabStorage(nil, nil, nil, nil)
// Get slab ids from empty storage
ids := storage.SlabIDs()
require.Equal(t, 0, len(ids))
// Store values
for id := range wantIDs {
err := storage.Store(id, generateRandomSlab(id, r))
require.NoError(t, err)
}
// Get slab ids from non-empty storage
ids = storage.SlabIDs()
require.Equal(t, len(wantIDs), len(ids))
for _, id := range ids {
require.True(t, wantIDs[id])
}
}
func TestBasicSlabStorageSlabIterat(t *testing.T) {
r := newRand(t)
address := atree.Address{1}
index := atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 0}
id1 := atree.NewSlabID(address, index.Next())
id2 := atree.NewSlabID(address, index.Next())
id3 := atree.NewSlabID(address, index.Next())
want := map[atree.SlabID]atree.Slab{
id1: generateRandomSlab(id1, r),
id2: generateRandomSlab(id2, r),
id3: generateRandomSlab(id3, r),
}
storage := atree.NewBasicSlabStorage(nil, nil, nil, nil)
// Store values
for id, slab := range want {
err := storage.Store(id, slab)
require.NoError(t, err)
}
iterator, err := storage.SlabIterator()
require.NoError(t, err)
count := 0
for {
id, slab := iterator()
if id == atree.SlabIDUndefined {
break
}
require.NotNil(t, want[id])
require.Equal(t, want[id], slab)
count++
}
require.Equal(t, len(want), count)
}
func TestPersistentStorage(t *testing.T) {
encMode, err := cbor.EncOptions{}.EncMode()
require.NoError(t, err)
decMode, err := cbor.DecOptions{}.DecMode()
require.NoError(t, err)
tempAddress := atree.Address{}
permAddress := atree.Address{1, 0, 0, 0, 0, 0, 0, 0}
t.Run("empty storage", func(t *testing.T) {
baseStorage := test_utils.NewInMemBaseStorage()
storage := atree.NewPersistentSlabStorage(baseStorage, encMode, decMode, nil, nil)
slabIndex := atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1}
tempSlabID := atree.NewSlabID(tempAddress, slabIndex)
permSlabID := atree.NewSlabID(permAddress, slabIndex)
_, found, err := storage.Retrieve(tempSlabID)
require.NoError(t, err)
require.False(t, found)
_, found, err = storage.Retrieve(permSlabID)
require.NoError(t, err)
require.False(t, found)
require.Equal(t, uint(0), storage.DeltasWithoutTempAddresses())
require.Equal(t, uint(0), storage.Deltas())
require.Equal(t, uint64(0), storage.DeltasSizeWithoutTempAddresses())
require.False(t, storage.HasUnsavedChanges(tempAddress))
require.False(t, storage.HasUnsavedChanges(permAddress))
})
t.Run("temp address", func(t *testing.T) {
r := newRand(t)
baseStorage := test_utils.NewInMemBaseStorage()
storage := atree.NewPersistentSlabStorage(baseStorage, encMode, decMode, nil, nil)
slabIndex := atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1}
tempSlabID := atree.NewSlabID(tempAddress, slabIndex)
permSlabID := atree.NewSlabID(permAddress, slabIndex)
slab1 := generateRandomSlab(tempSlabID, r)
slab2 := generateRandomSlab(permSlabID, r)
// no temp ids should be in the base storage
err = storage.Store(tempSlabID, slab1)
require.NoError(t, err)
require.Equal(t, uint64(0), storage.DeltasSizeWithoutTempAddresses())
require.True(t, storage.HasUnsavedChanges(tempAddress))
require.False(t, storage.HasUnsavedChanges(permAddress))
err = storage.Store(permSlabID, slab2)
require.NoError(t, err)
require.Equal(t, uint(1), storage.DeltasWithoutTempAddresses())
require.Equal(t, uint(2), storage.Deltas())
require.True(t, storage.DeltasSizeWithoutTempAddresses() > 0)
require.Equal(t, uint64(slab2.ByteSize()), storage.DeltasSizeWithoutTempAddresses())
require.True(t, storage.HasUnsavedChanges(tempAddress))
require.True(t, storage.HasUnsavedChanges(permAddress))
err = storage.Commit()
require.NoError(t, err)
require.Equal(t, uint(0), storage.DeltasWithoutTempAddresses())
require.Equal(t, uint(1), storage.Deltas())
require.Equal(t, uint64(0), storage.DeltasSizeWithoutTempAddresses())
require.True(t, storage.HasUnsavedChanges(tempAddress)) // Temp slabs are still in deltas after commit.
require.False(t, storage.HasUnsavedChanges(permAddress))
// Slab with temp slab id is NOT persisted in base storage.
_, found, err := baseStorage.Retrieve(tempSlabID)
require.NoError(t, err)
require.False(t, found)
// Slab with temp slab id is cached in storage.
_, found, err = storage.Retrieve(tempSlabID)
require.NoError(t, err)
require.True(t, found)
// Slab with perm slab id is persisted in base storage.
_, found, err = baseStorage.Retrieve(permSlabID)
require.NoError(t, err)
require.True(t, found)
// Slab with perm slab id is cached in storage.
_, found, err = storage.Retrieve(permSlabID)
require.NoError(t, err)
require.True(t, found)
// Remove slab with perm slab id
err = storage.Remove(permSlabID)
require.NoError(t, err)
require.True(t, storage.HasUnsavedChanges(tempAddress))
require.True(t, storage.HasUnsavedChanges(permAddress))
// Remove slab with temp slab id
err = storage.Remove(tempSlabID)
require.NoError(t, err)
require.Equal(t, uint(1), storage.DeltasWithoutTempAddresses())
require.Equal(t, uint64(0), storage.DeltasSizeWithoutTempAddresses())
require.True(t, storage.HasUnsavedChanges(tempAddress))
require.True(t, storage.HasUnsavedChanges(permAddress))
err = storage.Commit()
require.NoError(t, err)
require.True(t, storage.HasUnsavedChanges(tempAddress))
require.False(t, storage.HasUnsavedChanges(permAddress))
// Slab with perm slab id is removed from base storage.
_, found, err = baseStorage.Retrieve(permSlabID)
require.NoError(t, err)
require.False(t, found)
// Slab with perm slab id is removed from cache in storage.
_, found, err = storage.Retrieve(permSlabID)
require.NoError(t, err)
require.False(t, found)
// Slab with temp slab id is removed from cache in storage.
_, found, err = storage.Retrieve(tempSlabID)
require.NoError(t, err)
require.False(t, found)
require.Equal(t, uint(0), storage.DeltasWithoutTempAddresses())
require.Equal(t, uint(1), storage.Deltas())
require.Equal(t, uint64(0), storage.DeltasSizeWithoutTempAddresses())
})
t.Run("commit", func(t *testing.T) {
const (
numberOfAccounts = 100
numberOfSlabsPerAccount = 10
)
r := newRand(t)
baseStorage := newAccessOrderTrackerBaseStorage()
storage := atree.NewPersistentSlabStorage(baseStorage, encMode, decMode, nil, nil)
baseStorage2 := newAccessOrderTrackerBaseStorage()
storageWithFastCommit := atree.NewPersistentSlabStorage(baseStorage2, encMode, decMode, nil, nil)
simpleMap := make(map[atree.SlabID][]byte)
slabSize := uint64(0)
// test random updates apply commit and check the order of committed values
for range numberOfAccounts {
for range numberOfSlabsPerAccount {
addr := generateRandomAddress(r)
slabID, err := storage.GenerateSlabID(addr)
require.NoError(t, err)
slab := generateRandomSlab(slabID, r)
slabSize += uint64(slab.ByteSize())
err = storage.Store(slabID, slab)
require.NoError(t, err)
slabID2, err := storageWithFastCommit.GenerateSlabID(addr)
require.NoError(t, err)
err = storageWithFastCommit.Store(slabID2, slab)
require.NoError(t, err)
// capture data for accuracy testing
simpleMap[slabID], err = atree.EncodeSlab(slab, encMode)
require.NoError(t, err)
}
}
require.True(t, storage.DeltasSizeWithoutTempAddresses() > 0)
require.Equal(t, slabSize, storage.DeltasSizeWithoutTempAddresses())
require.True(t, storageWithFastCommit.DeltasSizeWithoutTempAddresses() > 0)
require.Equal(t, slabSize, storageWithFastCommit.DeltasSizeWithoutTempAddresses())
err = storage.Commit()
require.NoError(t, err)
require.Equal(t, uint64(0), storage.DeltasSizeWithoutTempAddresses())
err = storageWithFastCommit.FastCommit(10)
require.NoError(t, err)
require.Equal(t, uint64(0), storageWithFastCommit.DeltasSizeWithoutTempAddresses())
require.Equal(t, len(simpleMap), storage.Count())
require.Equal(t, len(simpleMap), storageWithFastCommit.Count())
// check update functionality
for sid, value := range simpleMap {
storedValue, found, err := baseStorage.Retrieve(sid)
require.NoError(t, err)
require.True(t, found)
require.Equal(t, value, storedValue)
storedValue, found, err = baseStorage2.Retrieve(sid)
require.NoError(t, err)
require.True(t, found)
require.Equal(t, value, storedValue)
}
// compare orders
require.Equal(t, baseStorage.SegTouchOrder(), baseStorage2.SegTouchOrder())
// remove all slabs from storage
for sid := range simpleMap {
err = storage.Remove(sid)
require.NoError(t, err)
require.Equal(t, uint64(0), storage.DeltasSizeWithoutTempAddresses())
err = storageWithFastCommit.Remove(sid)
require.NoError(t, err)
require.Equal(t, uint64(0), storageWithFastCommit.DeltasSizeWithoutTempAddresses())
}
require.Equal(t, uint(len(simpleMap)), storage.DeltasWithoutTempAddresses())
require.Equal(t, uint(len(simpleMap)), storageWithFastCommit.DeltasWithoutTempAddresses())
err = storage.Commit()
require.NoError(t, err)
err = storageWithFastCommit.FastCommit(10)
require.NoError(t, err)
require.Equal(t, 0, storage.Count())
require.Equal(t, 0, storageWithFastCommit.Count())
require.Equal(t, uint64(0), storage.DeltasSizeWithoutTempAddresses())
require.Equal(t, uint64(0), storageWithFastCommit.DeltasSizeWithoutTempAddresses())
// check remove functionality
for sid := range simpleMap {
storedValue, found, err := storage.Retrieve(sid)
require.NoError(t, err)
require.False(t, found)
require.Nil(t, storedValue)
storedValue, found, err = storageWithFastCommit.Retrieve(sid)
require.NoError(t, err)
require.False(t, found)
require.Nil(t, storedValue)
}
// compare orders
require.Equal(t, baseStorage.SegTouchOrder(), baseStorage2.SegTouchOrder())
})
t.Run("commit with error", func(t *testing.T) {
baseStorage := test_utils.NewInMemBaseStorage()
storage := atree.NewPersistentSlabStorage(baseStorage, encMode, decMode, nil, nil)
address := atree.Address{1}
id, err := storage.GenerateSlabID(address)
require.NoError(t, err)
// Encoding slabWithNonStorable returns error.
slabWithNonStorable := atree.NewArrayRootDataSlab(id, []atree.Storable{nonStorable{}})
err = storage.Store(id, slabWithNonStorable)
require.NoError(t, err)
for range 500 {
id, err := storage.GenerateSlabID(address)
require.NoError(t, err)
// Encoding slabWithSlowStorable takes some time which delays
// sending encoding result to results channel.
slabWithSlowStorable := atree.NewArrayRootDataSlab(id, []atree.Storable{newSlowStorable(1)})
err = storage.Store(id, slabWithSlowStorable)
require.NoError(t, err)
}
err = storage.FastCommit(2)
require.Equal(t, 1, errorCategorizationCount(err))
var externalError *atree.ExternalError
require.ErrorAs(t, err, &externalError)
require.ErrorIs(t, err, errEncodeNonStorable)
require.ErrorIs(t, externalError.Unwrap(), errEncodeNonStorable)
})
}
func TestPersistentStorageSlabIterator(t *testing.T) {
t.Run("empty storage", func(t *testing.T) {
storage := newTestPersistentStorage(t)
iterator, err := storage.SlabIterator()
require.NoError(t, err)
count := 0
for {
id, _ := iterator()
if id == atree.SlabIDUndefined {
break
}
count++
}
require.Equal(t, 0, count)
})
t.Run("not-empty storage", func(t *testing.T) {
address := atree.Address{1, 2, 3, 4, 5, 6, 7, 8}
id1 := atree.NewSlabID(address, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 1})
id2 := atree.NewSlabID(address, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 2})
id3 := atree.NewSlabID(address, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 3})
id4 := atree.NewSlabID(address, atree.SlabIndex{0, 0, 0, 0, 0, 0, 0, 4})
data := map[atree.SlabID][]byte{
// (metadata slab) headers: [{id:2 size:228 count:9} {id:3 size:270 count:11} ]
id1: {
// version
0x10,
// extra data flag
0x81,
// array of extra data
0x81,
// type info
0x18, 0x2a,
// child shared storage address
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
// child header count
0x00, 0x02,
// child header 1 (slab id, count, size)
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
0x00, 0x00, 0x00, 0x09,
0x00, 0xe4,
// child header 2
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
0x00, 0x00, 0x00, 0x0b,
0x01, 0x0e,
},
// (data slab) next: 3, data: [aaaaaaaaaaaaaaaaaaaaaa ... aaaaaaaaaaaaaaaaaaaaaa]
id2: {
// version
0x12,
// array data slab flag
0x00,
// next slab id
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
// CBOR encoded array head (fixed size 3 byte)
0x99, 0x00, 0x09,
// CBOR encoded array elements
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
},
// (data slab) next: 0, data: [aaaaaaaaaaaaaaaaaaaaaa ... atree.SlabID(...)]
id3: {
// version
0x10,
// array data slab flag
0x40,
// CBOR encoded array head (fixed size 3 byte)
0x99, 0x00, 0x0b,
// CBOR encoded array elements
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
0x76, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61,
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